What Anti-interference Measures to Take When PLC in the Cable Design Selection and Laying Construction?

What Anti-interference Measures to Take When PLC in the Cable Design Selection and Laying Construction?

What Anti-interference Measures to Take When PLC in the Cable Design Selection and Laying Construction?
1. Analog signal is a small signal, which is easily affected by external interference. Double-layer shielded cable should be used.
2. High speed pulse signal (such as pulse sensor, digital disk, etc.) should be shielded cable, not only to prevent external interference, but also to prevent the interference of high speed pulse signal to low level signal.
3. The frequency of communication cable between PLC is high. Generally, the cable provided by the manufacturer should be selected. In the case of low requirements, twisted pair cable with shielding can be selected.
4. The analog and DC signal cables cannot be routed in the same slot as the AC signal cables.
5. The shielded cables leading in and out of the control cabinet must be grounded and directly connected to the device without passing through the wiring terminals.
6. Ac signal, DC signal and analog signal cannot share the same cable. Power cables should be laid separately from signal cables.
7. During on-site maintenance, the interference solutions are as follows: use shielded cables for the interfered lines and re-lay them; Add anti-interference filter code in the program.

What Anti-interference Measures to Take When PLC in the Cable Design Selection and Laying Construction?

1. Analog signal is a small signal, which is easily affected by external interference. Double-layer shielded cable should be used.

2. High speed pulse signal (such as pulse sensor, digital disk, etc.) should be shielded cable, not only to prevent external interference, but also to prevent the interference of high speed pulse signal to low level signal.

3. The frequency of communication cable between PLC is high. Generally, the cable provided by the manufacturer should be selected. In the case of low requirements, twisted pair cable with shielding can be selected.

4. The analog and DC signal cables cannot be routed in the same slot as the AC signal cables.

5. The shielded cables leading in and out of the control cabinet must be grounded and directly connected to the device without passing through the wiring terminals.

6. Ac signal, DC signal and analog signal cannot share the same cable. Power cables should be laid separately from signal cables.

7. During on-site maintenance, the interference solutions are as follows: use shielded cables for the interfered lines and re-lay them; Add anti-interference filter code in the program.